Improvement in coupling-thimbles



UNITED STATES PATENT OFFICE.-

EEWIN F. BROOKS, OF BALTIMORE, MARYLAND, ASSIGNOR OF ONE-HALF HIS RIGHTTO CHARLES E. SEAL, OF SAME PLACE.

IMPROVEMEN TJN COUPLlNG-THIMBLES.

Specification forming part of Letters Patent No. 150,517, dated May 5,1874; application filed March 17, 1874.

To all whom it may concern:

Be it known that I, EDW'IN F. BROOKS, of

'the city of Baltimore, State of Maryland, have provided with twoor'more small perforations,

and to it is pivoted a disk correspondingly perforated, the objectbeing, by means of the pivoted disk, to accommodate the number of theopen perforations to the requirements of the consumption in the buildingin which the stop-valve is used, and so prevent the waste which isordinarily consequent upon unnecessary pressure in thedistributing-pipes.

1n the drawings, Figure l is a central longitudinal section of myinvention. Fig. 2 is an end view of the same, and Fig. 3 is an end viewwith the pivoted disk removed.

The same letter of reference is used in the various figures to indicatelike parts.

a is the body of the eoupling-thimble, consistin g of an ordinarycoupling portion, a, internally threaded to receive a pipe end, and ascrew portion, 1), to connect with an ordinary pt pe-couplin g. Thelatter portion of the thiinble is provided with a coniform chamber, b,

closed at its outer end, and provided with two or more smallperforations arranged in the are of a circle. Externally, this end isturned or channeled to seat the disk d, centrally pivoted, and providedwith a series of perforations corresponding with those in the thimble.By turning this disk in either direction, the holes, or any of them, canbe opened or closed, and the proper number to supply the demands of thehouse fixed.

This invention is particularly adapted and designed for use in gas-pipe,and will save the pipes from unnecessary pressure, and incidentallyrelieve the meter from its tendency to register more than has beenconsumed.

I claim as my invention-- l 1. A connecting-thimble, to be interposedbetween two sections of pipe, provided with an adjustable stop-valve,forthe purpose speci- 2. The connecting-thimble a, provided with a coniformchamber, b, perforations e, and pivoted disk stop-valve d, substantiallyas described.

EDWIN F. BROOKS.

Witnesses:

WM. H. FINOKEL, A. O. BRADLEY.

